CVE-2021-22921

2021-07-1200:00:00

ubuntu.com

node.js

security

vulnerability

privilege escalation

windows

installation directory

escalation attacks

path hijacking

dll hijacking

unix

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

31.6%

JSON

Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local
privilege escalation attacks under certain conditions on Windows platforms.
More specifically, improper configuration of permissions in the
installation directory allows an attacker to perform two different
escalation attacks: PATH and DLL hijacking.